Grease-gun grease container



July 17, 1928. I 1,677,603

S. A. STEEN GREASE GUN GREASE CONTAINER Filed Nov. 1924 INV NTOR.

44% AL2 7,M

-' ATTORNEYS.

Patented July 17, 1928.

UNITED" STATES PAT-Eu'r orFica.

SVEND A. amen, or mnwaux WISCONSIN, Assm'non 'ro wannms on. coxrm, or MILWAUKEE, WISCONSIN, A CORPORATION or wrsconsm.

GREASE-GUN GREASE CONTAINER.

Application filed November 3, 1924. Serial No. 747,569.

This invention relates to improvements in grease gun grease containers.

Automobiles and machinery in general are lubricated with grease and are now Oldlnarily supplied with grease fittings for easily connecting a gease gun thereto, and while it is simple to lubricate the parts, 1t 1s not so simple to charge the grease gun with the grease.

It is one of the objects of the present 1nvention to overcome the before mentioned objectionable feature and provide a grease gun grease container which may be lnserted 1n the gun for use in a very slmple manner, and without the possibility of solhng the hands. A further object of the invention 1s to provide a grease gun grease container 1n the shape of a cartridge formed of a collapsible material of asize to fit the bore of the gun, and adapted to be filled with a lubr1cant which is discharged from the container when i within the gun.

A further object of the invention is to provide a grease container of corrugated form adapted to fold u or be crushed together along the lines o corrugations.

A further object of the invention 1s to provide a grease gun grease container wh ch is of simple construction and inexpensive to manufacture, is strong and durable, and is well adapted for the purpose descr1bed.

With the above and other objects in view, the invention consists of the improved grease gun grease container and its parts and combinations as set forth in the clalms and all equivalents thereof.

In the accompanying drawings 1n WhlCh .the same reference characters indicate the same parts in all of the views:

Fig. 1 is a central longltudlnal new of a grease or lubricating gun showing the improved grease container or cartridge positioned therein and ready for use;

Fig. 2 is a side view of the grease container or cartridge; and

Fig. 3 is an end view thereof.

Referring to the drawing, the numeral 5 indicates the cylinder of a grease or lubr1 eating gun wh ch is provided with a nozzle 6 at one endand a threaded cap 7 at 1ts opposite end. A piston 8 is positioned within the cylinder and is connected to a stem bearing lubricating fitting or an interposed flexibletube may provided (not shown). The improved grease container comprises a tubular member 11 preferably formed of sheet lead or other like flexible material.

Said tubular member is closed at one end and ls-provided with a nozzle 12 at its opposite end which is of a size to closely fit into the'nozzle 6 of an ordinary lubricating gun. A cap 13 threaded on said nozzle to close the same is kept thereon during handling, but 7 before the container is placed within the grease gun the cap is removed.

To provide for the easy collapsin of the I tube to discharge the lubricant, the tube 1s preferably formed with circumferential creases or corrugations 14 so that under pressure the tube will close or fold like an accordion. A disk 15 is interposed between the closed end of the collapsible tube and the piston to provide a flat surface to bear against the closed end portion of the tube.

In use, the container filled with grease is adapted to be sold over the counter, and when it is desired to recharge a. grease gun, 1t is only necessary to unscrew the cap and place the container within the grease gun and the disk between the tube and the end of the grease gun which is then threaded on the end of the barrel of the gun. By thread-' ing the piston stem inwardly, the grease will be forced outwardly through the nozzle of the gun in theordinary manner. When the grease is entirely discharged, the collapsed container may be easily pushed out of the grease gun and a filled container-substituted therefor.

From the foregoing description, it will be seen that the grease gun grease container is of very simple construction and is well adapted for the purpose described.-

What I claim as my invention is:

A grease gun grease container, comprising a cylindrical tubular lubricant container entirely closed at one end and formed of easily collapsiblemetal, said container having one end closed and at its opposite end having a nozzle of a size and shape to fit within the nozzle of the grease gun but not extend threrethrough, said container also 5 having circumferential fold creases Which engage the inner wall of the grease gun and with the closed end outer side portion of the container being engaged by the piston of the grease gun to force the luhrieaut from said container and through the nozzle of the 10 container and the grease gun.

In testimony whereof, I aflix my signature.

' SVEND A. STEEN. 

